摘要
景观格局变化对生态系统水质净化服务具有重要影响。为深入探究景观格局对水质净化服务的影响机制,通过国内外相关文献的系统梳理,总结出不同时空尺度下,景观格局对水质净化服务的影响存在差异,即水质净化服务对景观格局的响应具有尺度依赖性。相同尺度下,不同地形条件和景观基质也会使得景观格局对水质净化服务的影响表现出空间分异性。同时,景观格局与水质净化服务之间存在阈值效应,这使得决策者进行景观格局优化与水质保护时需要更为全面地考虑各种因素。针对当前研究存在的水质净化服务对景观格局响应的特征空间尺度不明晰、景观配置及空间分异特征研究有待加强,阈值效应不明确等问题,未来需开展多等级多尺度的对比研究,从不同侧面阐释景观格局与水质净化服务作用的特征尺度,发展能表征生态过程的景观格局指数,加强景观配置对水质净化服务影响的研究,深化不同影响因素下,两者之间空间分异特征探索,探究水质净化服务对景观格局响应的阈值识别方法,有效地判定阈值,为区域景观格局优化和水环境管理提供决策支持。
The change of landscape pattern has an important influence on the ecosystem water purification service.In order to explore the influence mechanism of the landscape pattern on the water purification service,in this article we systematically sorted out and analyzed the domestic and foreign relevant literature.It is concluded that there are differences in the influence of landscape pattern on water purification service at different spatial and temporal scales;that is,the response of water purification service to landscape pattern has scale dependence.At the same scale,different terrain conditions and landscape matrix also make the impact of landscape pattern on water purification service show spatial heterogeneity.At the same time,there is a threshold effect between landscape pattern and water purification service,which makes decision makers need to consider various factors more comprehensively in optimizing landscape pattern and water quality protection.In the current research,the characteristic spatial scale of water purification service response to landscape pattern is unclear;the study of landscape configuration and spatial differentiation characteristics needs to be strengthened;threshold effect is not clear.In the future,it is necessary to carry out multi-level and multi-scale comparative research to explain the characteristic scale of landscape pattern and water purification service from different aspects.Developing the landscape pattern index which can represent the ecological process and strengthening the research on the influence of landscape configuration on water purification service will deepen the exploration of spatial differentiation characteristics under different influencing factors.Strengthen the exploration of threshold recognition method of water quality purification service to landscape pattern response,effectively determines the threshold,and provides decisions support for regional landscape pattern optimization and water environment management.
作者
王飞
陶宇
欧维新
WANG Fei;TAO Yu;OU Weixin(College of Land Management,Nanjing Agricultural University,Nanjing 210095,China;National&Local Joint Engineering,Research Center for Rural Land Resources Use and Consolidation,Nanjing 210095,China)
出处
《地球科学进展》
CAS
CSCD
北大核心
2021年第1期17-28,共12页
Advances in Earth Science
基金
国家自然科学基金项目“太湖流域景观格局变化的水生态服务响应机制及调控研究”(编号:41971230)和“太湖流域水生态服务供需空间量化、格局演变与驱动机制”(编号:41701211)资助。
关键词
景观格局
水质净化服务
响应关系
尺度
Landscape pattern
Water purification service
Response relationship
Scale
